What Are Thrombosed Piles: Everything You Should Know Haemorrhoids, commonly known as swollen rectal veins, are dilated veins in the rectal area. When a blood clot forms inside one, it causes a thrombosed haemorrhoid—a painful condition requiring attention. Below, explore the symptoms, triggers, and treatment options for thrombosed haemorrhoids. ### https://seosunnyagrawal.wixsite.com/my-site-7/post/what-are-thrombosed-haemorrhoids-or-piles